WAEC Agricultural Science 2025 Objective — Question 30

Question 30 of 50 from the West African Examinations Council (WAEC) Agricultural Science 2025 Objective paper, with the correct answer and a full explanation.

Dormancy in seeds could be broken by

A. soil treatment
B. refrigeration
C. heat treatmentCorrect
D. sterilization

Explanation

Seeds with physical dormancy have hard coats that block water and gas exchange. Heat treatment, such as dry oven heating or soaking in warm water, can soften or crack the seed coating, allowing germination to proceed under favourable conditions.

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